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HTML5 and Google App Engine: The Epic Tag Team Take on Modern Web Apps at Scale
Ido Green, Developer Relations, ChromeBrad Abrams, Product Manager, Google Cloud Platform
Modern Web Applications
Modern Web Applications
● Self Contained & Functional
● "Offline First"
● Client Side Architecture & MVC Frameworks
● Device Aware / 60fps
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Client Side Frameworks
● Ember.js - Don't waste time making trivial choices
● Backbone.js - Gives structure to web applications by providing models with binding, collections and views
● Angular.js - AngularJS lets you extend HTML vocabulary for your application
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More: addyosmani.github.com/todomvc/
● Airplane, road trip, deserted island
● Flaky connections (e.g. cafes, car)
● Better performance
● Consolidates the concept of permanent app you will have always available
* We will use: Lawnchair for our demo.
Offline - Why?
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● Storing assets: AppCache
● Storing data: localStorage, IndexedDB, File API.
● Offline first:○ Pretend that there's no internet connection○ Implement a sync layer that works only when
online.
Offline - How?
navigator.onLine & window.(ononline|onoffline)
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Do More For Your Users
Web Intents is a framework for client-side service discovery and inter-application communication
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Google Chrome Frame
Chrome Frame is an open source plug-in that seamlessly brings Google Chrome's open web technologies and speedy JavaScript engine to IE
<meta http-equiv="X-UA-Compatible" content="chrome=1">
X-UA-Compatible: chrome=1
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Modern Web Apps and The Server Conundrum
All modern web apps have to deal with a "home" server○ Offload Computation○ Sharing and Collaboration
But who wants to run a server○ Spikey traffic ○ Client Server communication○ Serialization○ OAuth Dance
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App engine to the rescue
● Make it easy to build
● Easy to run and manage
● Easy to scale
● Free to get started, pay for what you use
● Not just for web serving, but also data persistence
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Google Cloud Endpoints:
Business Logic
APIs for Mobile and Web Backends Made Easy!
Storage(DataStore, SQL, Drive, etc)
Web APIs
End
poin
ts
Trusted Tester
Demo
Google Cloud Endpoints for Beer!
Business Logic
Beer Rating and Review Application
StorageNoSql Datastore
End
poin
ts
Access Control, Sort, Filter
Client UI for managing Beers
Demo!Beers On!
Load Test Results - From laptop wifi
% ab -n9000 -c100 http://birra-io2012.appspot.com/
Percentage of the requests served within a certain time (ms) 50% 263 66% 321 75% 370 80% 390 90% 449 95% 536 98% 649 99% 715 100% 3858 (longest request)
> 90% of r
equests b
elow
1/2 a se
c
Load Test Results - From Compute Engine
% ab -n1000000 -c10 http://birra-io2012.appspot.com/
Percentage of the requests served within a certain time (ms) 50% 6 66% 6 75% 6 80% 6 90% 7 95% 7 98% 11 99% 17 100% 3019 (longest request)
> 95% less
than 7m
s
Screen shot of admin console
> 6k QPS!!
Key Take Aways
Building modern applications with HTML5 and App Engine
AppEngine makes for easy deployment at scale
Build interactivity by leveraging Cloud Endpoints
Use JavaScript Client Library
Exploit Modern Browser Features:○ Offline○ Geo○ Web Intents#io12
Questions?
Ido GreenDeveloper RelationsGoogle Chrome Platformplus.ly/greenido
Brad AbramsProduct Manager Google Cloud Platformhttp://bradabrams.com/+
App:: http://birra-io2012.appspot.com/
Code: https://github.com/greenido/
Slides: ido-green.appspot.com
Access: http://endpoints-trusted-tester.appspot.com
Related Sessions
Building Mobile App Engine Backends for Android, iOS and the WebCatch it on YouTube later...
Building Android Applications that Use Web APIs@ 5:15 in Room 9
Codelab: Building REST APIs for Mobile with App EngineFriday @ 11am
Thank you!
Credits
● Offline - http://www.flickr.com/photos/11384441@N06/5102925749/
● Road - http://www.flickr.com/photos/95572727@N00/4848088053/
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